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Strike441 [17]
3 years ago
10

Which of the following is the best description of a light-year​

Biology
1 answer:
marin [14]3 years ago
6 0

Answer:  The distance light travels in a year.

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In one type of plant, orange petals (O) are dominant over yellow petals (o) and tall stems (T) are dominant over short stems (t)
vodka [1.7K]

Answer No 1:

The set up of the punnet square is shown in the attached diagram. As the alleles assort independently hence the gametes formed will be OT,Ot,OT,Ot and OT,Ot,oT,ot. These will be the outcomes of the possible gametes formed. When these gametes are cross bred, the results are shown in the diagram attached.

Answer No 2:

The outcomes of each possible genotype are:

OOTT = 2/16

OOTt = 4/16

OOtt = 2/16

Oott = 2/16

OoTT = 2/16

OoTt = 4/16

Answer No 3:

The likelihood of each possible offspring phenotype is:

Orange petals with tall stem  and orange petals  with small stems present in ratio 12:4 i.e. 3:1.

6 0
3 years ago
A biochemist isolates and purifies various molecules needed for DNA replication. When she adds these molecules to DNA, replicati
olga55 [171]

Answer:

DNA ligase

Explanation:

<em>The biochemist must have left out DNA ligase enzyme.</em>

<u>The DNA ligase enzyme is able to catalyze the formation of phosphodiester bonds and as such, capable of joining strands of DNA together to form a single strand.</u>

The numerous DNA segments of a few nucleotides long observed by the biochemist must have been the replicated product of the lagging DNA strand. The lagging strand is replicated discontinuously in short strands because the DNA polymerase enzyme can only elongate primers in 5' to 3' direction. The short segments are known as Okazaki segments and are usually joined together to form a whole strand by the DNA ligase enzyme.

Hence, the missing component is the DNA ligase.

3 0
3 years ago
What type of cell division creates two identical cells and is necessary for growth, development and wound healing?
shutvik [7]

Mitosis creates two identical cells and is necessary for growth, development and wound healing

5 0
2 years ago
Which of these in NOT made up of two or more substances that are combined physically?
Black_prince [1.1K]
B the answer is b I think
5 0
3 years ago
Match the best description to the following terms:
hammer [34]
21 is the right answer because question one and question to are not the samegvvv question of the question of what I was going through
3 0
2 years ago
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